Pirarucu vs Dwarf Gourami

Arapaima gigas comparé à Trichogaster lalius

Taxonomy & Classification

Attribut	Pirarucu	Dwarf Gourami
Nom scientifique	Arapaima gigas	Trichogaster lalius
Ordre	Osteoglossiformes	Anabantiformes
Famille	Arapaimidae	Osphronemidae
Conservation Status	Data Deficient	Least Concern

Physical Traits

Attribut	Pirarucu	Dwarf Gourami
Longueur maximale	450,0 cm	9,0 cm
Poids maximum	200,0 kg	0,005 kg
Couleur	Dark olive-gray to grayish-black back with large scales that become vivid red-orange with black borders on the posterior flanks; belly pale cream; caudal fin reddish and rounded.	Males show brilliant alternating diagonal red-orange and iridescent turquoise-blue stripes across the flanks; dorsal and anal fins have red and blue streaking; throat and belly vivid electric blue.

Habitat & Environment

Attribut	Pirarucu	Dwarf Gourami
Type d'eau	Freshwater	Freshwater
Plage de profondeur	—	—
Aire de répartition	Restricted to the Amazon River basin in Brazil, Peru, Guyana, and Bolivia. Inhabits flooded várzea lakes, oxbows, and large river channels; surfaces frequently to breathe …	Native to the rivers and floodplains of West Bengal, Assam, Bangladesh, and parts of Pakistan. Found in densely vegetated slow streams, ponds, and flooded rice …
Habitat	Floodplain lakes (várzea) and large river channels of the Amazon basin. Slow-moving, shallow, warm freshwater (26-30°C). An obligate air-breather; rises to surface to gulp air. …	Slow-moving rivers, ponds, and ditches of Bangladesh, India, and Pakistan. Shallow, warm, densely vegetated freshwater (22-28°C). Males highly territorial and build bubble nests among floating …

Aquarium Suitability

Attribut	Pirarucu	Dwarf Gourami
Taille minimale de l'aquarium	—	40 L
Température	—	22-28
Plage de pH	—	6.0-7.5
Niveau d'entretien	—	Easy
Tempérament	—	Peaceful

Informations sur la pêche

Attribut	Pirarucu	Dwarf Gourami
Poisson de pêche sportive	Oui	Non
Cote de combativité	10/10	—
Record du monde	—	—
Teneur en mercure	—	—

Cuisine & Edibility

Pirarucu

Large, firm white fillets with a mild, clean flavor and low fat; historically a staple protein in Amazonian communities. Often salted and dried; sustainable harvest is tightly regulated.

Dwarf Gourami

Not consumed — popular ornamental labyrinth fish treasured in freshwater aquariums for its vivid red-and-blue striped coloration and calm temperament.

Species Overview

Pirarucu

The arapaima is one of the largest freshwater fish in the world, reaching up to 4.5 meters. An obligate air-breather, it must surface every 10-20 minutes to gulp air. Its tongue is bony and used to crush prey against the roof of its mouth.

Dwarf Gourami

The dwarf gourami is a brightly colored labyrinth fish native to the slow-moving waters of South Asia. Males build elaborate bubble nests at the surface for spawning. Its pelvic fins have evolved into long, thread-like feelers used to sense the environment.